2278762816 has 56 divisors (see below), whose sum is σ = 4970861280. Its totient is φ = 1027852800.

The previous prime is 2278762813. The next prime is 2278762823. The reversal of 2278762816 is 6182678722.

It is a self number, because there is not a number n which added to its sum of digits gives 2278762816.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2278762813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79870 + ... + 104578.

It is an arithmetic number, because the mean of its divisors is an integer number (88765380).

Almost surely, 2^2278762816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2278762816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2485430640).

2278762816 is an abundant number, since it is smaller than the sum of its proper divisors (2692098464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2278762816 is a wasteful number, since it uses less digits than its factorization.

2278762816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24863 (or 24853 counting only the distinct ones).

The product of its digits is 903168, while the sum is 49.

The square root of 2278762816 is about 47736.3888035113. The cubic root of 2278762816 is about 1315.9307681234.

The spelling of 2278762816 in words is "two billion, two hundred seventy-eight million, seven hundred sixty-two thousand, eight hundred sixteen".